Question

[Hy Đinh Lạp Tần]

giải cứu bạn tui ik mng 
pls_________________

Answer 1

[My Vũ]

1/2-(2/3.x-1/3)=2/3

1/2-2/3x+1/3=2/3

1/2-2/3x=2/3-1/3

1/2-2/3x=1/3

2/3x=1/2-1/3

2/3x=1/6

x=1/6:2/3

x=1/4

vậy x bằng 1/4